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CVE-2023-3669

CODESYS: Missing Brute-Force protection in CODESYS Development System

LOW
3.3
CVSS Score
Published: August 3, 2023 at 11:11 AM UTC
Updated: June 17, 2026 at 06:14 AM UTC
1 product affected across 1 vendorDevelopment System

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Severity
LOW3.3
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

A missing Brute-Force protection in CODESYS Development System prior to 3.5.19.20 allows a local attacker to have unlimited attempts of guessing the password within an import dialog.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Development System· Codesys
95%
v < 3.5.19.203.0.0.0 ≤ v < 3.5.19.203.0.0.0
Affected range stops below 3.5.19.20, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory
Source: [email protected]
https://cert.vde.com/en/advisories/VDE-2023-023

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOWCERTVDE
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-307

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